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Brand-new Idol Society

Fanbase Name

Brand-new Idol Society

Years Active





Tsubasa Records (2010 - 2012, 2016 - 2017)
Avex Trax (2012 - 2014)
Nippon Crown (2018 - 2019)

Associated Acts

BiS Kaidan, BiSH, GANG PARADE, Maison book girl, LUI FRONTiC Akabane JAPAN, BILLIE IDLE®, CY8ER, Morphine Tokyo, the End, Akishibu Project, SAiNT SEX, EMPiRE, De☆Ful, Naturallium.vivid, Attain Music, Kimi no Mawari., HOLY SHiTS, meme tokyo, ARCANA PROJECT, EMPiRE


Official Website


Itou Musensiteebu
Neo Trees
Yuki Reysol

Former Members

Pour Lui
Hirano Nozomi
Yokoyama Rina
Nakayama Yukiko
Terashima Yufu
Wakisaka Yurika
Michibayashi Rio
First Summer Uika
Kamiya Saki
Koshouji Megumi
Nel Nehru
Aya Eightprince
Toriaez Hana
Kika Front Frontale
Peri Ubu
Go Zeela
Pan Luna Leafy
Manako Chiii Manako
Zuzu Death

Third Generation's current lineup

Third Generation's starting lineup

Second Generation's final lineup

2017 lineup

Second Generation's starting lineup

First Generation's final lineup

2012 lineup

First Generation's starting lineup

BiS, also known as Brand-new idol Society (Shinsei Idol Kenkyuukai, 新生アイドル研究会), is a Japanese idol group founded in 2010 by Pour Lui.

They are considered the flagship group of WACK, and have since had multiple reboots.

There are currently three incarnations of BiS:

  • The first generation (known as "Original BiS"), was active from late 2010 and disbanded on July 8th, 2014.
  • The third generation is the current lineup of BiS, and was revealed exactly one month after the disbandment of second-generation BiS.

Members[edit | edit source]

Past Members[edit | edit source]

1st Generation[edit | edit source]

2nd Generation[edit | edit source]

3rd Generation[edit | edit source]

Other Members[edit | edit source]

  • Koshino Junko (コシノジュンコ) Was made an honorary life member of BiS on 4 November 2013
  • Youko (ようこ) Won an internet auction to become a member of BiS for one day.
  • "Gamiya Saki" (ガミヤサキ) Was announced as a member of BiS 1st in March 2018, but withdrew two days later.
  • Okuda Minami (オクダミナミ) Is credited as a member in the My Ixxx liner notes, however, never actually debuted, or even revealed her face. She was probably a member who withdrew before any announcement of her joining was made.

History[edit | edit source]

First Generation[edit | edit source]

2010-2011[edit | edit source]

BiS was initially founded on December 9th, 2010. The very first members were Pour Lui, Nakayama Yukiko, Yokoyama Rina and Hirano Nozomi.

On January 11th, BiS' first digital single, Taiyou no Jumon, was released, making it their first release overall.

BiS' first album, Brand-new idol Society, was released on March 23rd.

On June 24th, Yokoyama Rina withdrew from BiS.

On July 9th, Rina was replaced by Terashima Yufu.

BiS' debut single, My Ixxx, was released on August 3rd.

On December 30th, Nakayama Yukiko graduated from BiS.

2012[edit | edit source]

On April 11th 2012, BiS released their last indies single, IDOL.

Shortly after IDOL's release, BiS signed to major label Avex Trax and two more members, Michibayashi Rio and Wakisaka Yurika, were added to the group on April 15th.

On July 18th, BiS released their major debut single, PPCC, followed by their second studio album, IDOL is DEAD, on October 10th.

2013[edit | edit source]

Wakisaka Yurika graduated from BiS on March 16th.. Terashima Yufu also withdrew from the group on May 26th, and the same day, three new members, First Summer Uika, Tentenko and Kamiya Saki, were added.

Michibayashi Rio graduated from BiS on September 22nd. On November 19th, she was replaced by Koshouji Megumi.

On March 5th, BiS' first generation released their final studio album, WHO KiLLED IDOL?, followed by their last single, FiNAL DANCE / nerve.

BiS' first generation disbanded on July 8th, and the group remained inactive for the next two years.

Second Generation[edit | edit source]

2016[edit | edit source]

On July 8th, Exactly two years after BiS disbanded, Pour Lui announced that she would be reforming the group with new members. From August 31st to September 4th, a live-streamed audition boot camp for new members was held, resulting in Go Zeela, Kika Front Frontale, Aya Eightprince and Peri Ubu joining the group.

The first studio album of BiS' second generation, Brand-new idol Society 2, was released on November 16th.

2017[edit | edit source]

On April 2nd, Pan Luna Leafy and Momoland joined BiS. First generation member Kamiya Saki also rejoined the group, as part of a temporary trade with Aya Eightprince, who had been transferred to her current group, GANG PARADE.

BiS' second generation released their first single, SOCiALiSM, on May 31st.

2018[edit | edit source]

On March 4th, first-generation members Pour Lui and Kamiya Saki left BiS, and Aya Eightprince rejoined.

On March 18th, Muropanako, Nel Nehru, Toriaez Hana, Mewclub and YUiNA EMPiRE joined the group, and BiS was split into two groups, BiS 1st, and BiS 2nd.

Momoland withdrew from BiS on April 20th, and the same day, a competitive system, BiS.LEAGUE, was introduced; In votes given by fans, the highest-ranking members of BiS would be transferred to BiS 1st, and low-ranking members to BiS 2nd. This system continued until December 29th, when BiS was united into a single group again. However, Aya Eightprince, Toriaez Hana, Nel Nehru, Muropanako and YUiNA EMPiRE were threatened with removal from the group due to their poor BiS.LEAGUE rankings.

2019[edit | edit source]

On July 1st, Nel Nehru left BiS, just a few days after being placed on probation.

From March 24th to 30th, the remaining probation members took part in the WACK AUDiTiON CAMP 2019, under the condition that anyone who was eliminated from the audition would also be fired, resulting in the removals of Aya Eightprince and Toriaez Hana. In response, the remaining members of BiS announced that all members were to graduate from the group.

On May 11th, BiS' second generation disbanded.

Third Generation[edit | edit source]

2019[edit | edit source]

On March 30th, 2019, at the same time that the second generation announced their disbandment, Watanabe Junnosuke announced that he would be holding closed auditions for a third generation of BiS.

The starting lineup was revealed exactly one month after the second generation's disbandment, and was made up of Manako Chiii ManakoChantmonkeeNeo TreesToggy and Itou Musensiteebu

BiS' third generation officially debuted at Tokyo Idol Festival on August 4th.

On August 13th, Manako Chiii Manako suddenly withdrew from BiS. The following day, BiS' third generation released their first studio album, Brand-new idol Society (named after the debut album of the first generation).

On September 30th, Manako Chiii Manako's replacement, Zuzudeath, was added to the group. However, she also withdrew just a week after her reveal.

BiS' third generation released their first single, DEAD or A LiME, on November 20th.

2020[edit | edit source]

The third generation's second album, LOOKiE, was released on February 5th. It was followed up by ANTi CONFORMiST SUPERSTAR on August 19th.

On November 25th, BiS released a compilation album, "Propaganda" to "PROPAGANDA", based on a fan vote of songs released by the third generation so far.

2020[edit | edit source]

BiS released the EP, KiLLiNG IDOLS, on February 24th. It was followed up by the single, TOUCH ME / LOVE.

In early April, it was announced that AKB48 member Kashiwagi Yuki would be joining BiS sometime in the near future.

Discography[edit | edit source]

Publications[edit | edit source]

Other Media[edit | edit source]

Live Video[edit | edit source]

Film[edit | edit source]

Television[edit | edit source]

Other Video[edit | edit source]

Radio[edit | edit source]

  • [2013.01.06-2014.07.05] BiS no Vision? (ビスのビッスン?)
  • [2018.07.18-2019.03.20] BiS no Honne or DIE (BiSの本音 or DIE; BiS' True Intentions or DIE)
  • [2019.09.17] BiS no PARK LiFE

Events[edit | edit source]

Trivia[edit | edit source]

  • BiS are often credited with helping to initiate the mid-2010s alt-idol boom.
  • Not to be confused with the British rock band bis or the visual-kei group BIS (Believe In Style)
  • Are the only WACK unit to have their own series of movies and anime.
  • Part of Pour Lui's motivation to reform BiS was out of jealousy over how their successors BiSH had become much more famous.
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